One of the most powerful advantages of participating in a 401(k) is the money you save in taxes. Your 401(k) contributions are taken out of your paycheck before taxes are deducted from your paycheck. That means your gross income is reduced, so you pay less in income taxes.
There’s more. As your 401(k) grows in value over time, you don’t pay taxes on those gains like you do with a bank account or individually owned stocks or mutual funds. You only pay taxes on your 401(k) when you begin to withdraw the money at age 59 1/2, when you may be in a lower tax bracket.
Because you’re not paying taxes on any gains from the account, your 401(k) money can grow more quickly, year after year, than many other types of savings.